38618686432 has 48 divisors (see below), whose sum is σ = 76829924304. Its totient is φ = 19106560000.

The previous prime is 38618686391. The next prime is 38618686499. The reversal of 38618686432 is 23468681683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8177832 + ... + 8182552.

It is an arithmetic number, because the mean of its divisors is an integer number (1600623423).

Almost surely, 2^38618686432 is an apocalyptic number.

38618686432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38618686432 is a deficient number, since it is larger than the sum of its proper divisors (38211237872).

38618686432 is a wasteful number, since it uses less digits than its factorization.

38618686432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363 (or 7355 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 55.

The spelling of 38618686432 in words is "thirty-eight billion, six hundred eighteen million, six hundred eighty-six thousand, four hundred thirty-two".